西門子觸摸屏開機屏幕閃跳(當天*修復)；上海恒稅修(xiu)西(xi)(xi)(xi)門(men)子(zi)工業(ye)設備修(xiu)的(de)好(hao)還修(xiu)的(de)快，我公(gong)(gong)司(si)庫存各(ge)系列西(xi)(xi)(xi)門(men)子(zi)配件(jian)(jian)及維(wei)修(xiu)所需配件(jian)(jian)，模塊，電(dian)容，芯片等核心(xin)配件(jian)(jian)都(dou)是原廠，修(xiu)好(hao)不易壞(huai)，很多修(xiu)好(hao)用到報廢都(dou)有(you)。如果需要維(wei)修(xiu)可以(yi)發給我公(gong)(gong)司(si)處理，另外公(gong)(gong)司(si)各(ge)西(xi)(xi)(xi)門(men)子(zi)模擬(ni)測試平(ping)臺等在線測速儀都(dou)齊全，在加上專(zhuan)業(ye)的(de)西(xi)(xi)(xi)門(men)子(zi)維(wei)修(xiu)團(tuan)隊，可以(yi)確保西(xi)(xi)(xi)門(men)子(zi)維(wei)修(xiu)成功率，公(gong)(gong)司(si)以(yi)合(he)理的(de)價格、良好(hao)的(de)信譽，已得到同行及西(xi)(xi)(xi)門(men)子(zi)用戶的(de)認可

西門子觸摸屏開機屏幕閃跳(當天*修復)；通(tong)電(dian)(dian)(dian)(dian)(dian)DC24伏，屏(ping)幕(mu)無(wu)光(guang)，電(dian)(dian)(dian)(dian)(dian)流約(yue)230mA 處理過(guo)程：用(yong)(yong)手(shou)接觸屏(ping)幕(mu)，蜂鳴(ming)器(qi)有呼應，闡明(ming)(ming)程序(xu)運(yun)行(xing)正(zheng)(zheng)常(chang)(chang)。量高(gao)壓(ya)(ya)條12伏DC電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)正(zheng)(zheng)常(chang)(chang)，操控電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)ENABLE低有用(yong)(yong)為(wei)低電(dian)(dian)(dian)(dian)(dian)平正(zheng)(zheng)常(chang)(chang)。闡明(ming)(ming)毛病(bing)在高(gao)壓(ya)(ya)發(fa)作電(dian)(dian)(dian)(dian)(dian)路或燈管(guan)現(xian)(xian)已損壞。拆(chai)開發(fa)現(xian)(xian)燈管(guan)一(yi)頭(tou)(tou)現(xian)(xian)已發(fa)黑，替換燈管(guan)后(hou)(hou)仍(reng)然無(wu)光(guang)，查看高(gao)壓(ya)(ya)變(bian)壓(ya)(ya)器(qi)也(ye)已損壞。市面上(shang)無(wu)此高(gao)壓(ya)(ya)變(bian)壓(ya)(ya)器(qi)，于是買一(yi)個(ge)LCD的(de)(de)帶(dai)兩管(guan)的(de)(de)高(gao)壓(ya)(ya)條，接好線后(hou)(hou)固定(ding)，通(tong)電(dian)(dian)(dian)(dian)(dian)正(zheng)(zheng)常(chang)(chang)。故障現(xian)(xian)象：通(tong)電(dian)(dian)(dian)(dian)(dian)后(hou)(hou)屏(ping)幕(mu)無(wu)顯示，電(dian)(dian)(dian)(dian)(dian)流約(yue)100mA修(xiu)正(zheng)(zheng)過(guo)程：用(yong)(yong)手(shou)接觸屏(ping)幕(mu)，蜂鳴(ming)器(qi)無(wu)呼應，闡明(ming)(ming)程序(xu)運(yun)行(xing)不正(zheng)(zheng)常(chang)(chang)。萬用(yong)(yong)表(biao)丈量幾組(zu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)3.3伏、5.1伏、12伏都正(zheng)(zheng)常(chang)(chang)。據用(yong)(yong)戶反(fan)映(ying)，用(yong)(yong)戶發(fa)現(xian)(xian)接觸屏(ping)毛病(bing)后(hou)(hou)曾企圖修(xiu)理，在通(tong)電(dian)(dian)(dian)(dian)(dian)的(de)(de)過(guo)程中，呈現(xian)(xian)過(guo)一(yi)次正(zheng)(zheng)常(chang)(chang)的(de)(de)狀況，但(dan)斷電(dian)(dian)(dian)(dian)(dian)后(hou)(hou)再(zai)次通(tong)電(dian)(dian)(dian)(dian)(dian)就不行(xing)了。剖析芯片某個(ge)腳位有虛焊，使得總線過(guo)錯，然后(hou)(hou)程序(xu)不能跑動。遂(sui)用(yong)(yong)熱風槍對密(mi)腳芯片焊腳加(jia)熱，同(tong)時用(yong)(yong)鑷子按壓(ya)(ya)芯片，使焊腳和(he)錫從頭(tou)(tou)熔合(he)。通(tong)過(guo)以上(shang)處理后(hou)(hou)，從頭(tou)(tou)開機，電(dian)(dian)(dian)(dian)(dian)流上(shang)升到(dao)470mA，一(yi)切正(zheng)(zheng)常(chang)(chang)。